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// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/dynamic_annotations.h"
#include "base/lock.h"
#include "base/message_loop.h"
#include "base/string_util.h"
#include "base/thread.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"
using base::Thread;
typedef PlatformTest ThreadTest;
namespace {
class ToggleValue : public Task {
public:
explicit ToggleValue(bool* value) : value_(value) {
ANNOTATE_BENIGN_RACE(value, "Test-only data race on boolean "
"in base/thread_unittest");
}
virtual void Run() {
*value_ = !*value_;
}
private:
bool* value_;
};
class SleepSome : public Task {
public:
explicit SleepSome(int msec) : msec_(msec) {
}
virtual void Run() {
PlatformThread::Sleep(msec_);
}
private:
int msec_;
};
class SleepInsideInitThread : public Thread {
public:
SleepInsideInitThread() : Thread("none") { init_called_ = false; }
virtual ~SleepInsideInitThread() { }
virtual void Init() {
PlatformThread::Sleep(500);
init_called_ = true;
}
bool InitCalled() { return init_called_; }
private:
bool init_called_;
};
} // namespace
TEST_F(ThreadTest, Restart) {
Thread a("Restart");
a.Stop();
EXPECT_FALSE(a.message_loop());
EXPECT_FALSE(a.IsRunning());
EXPECT_TRUE(a.Start());
EXPECT_TRUE(a.message_loop());
EXPECT_TRUE(a.IsRunning());
a.Stop();
EXPECT_FALSE(a.message_loop());
EXPECT_FALSE(a.IsRunning());
EXPECT_TRUE(a.Start());
EXPECT_TRUE(a.message_loop());
EXPECT_TRUE(a.IsRunning());
a.Stop();
EXPECT_FALSE(a.message_loop());
EXPECT_FALSE(a.IsRunning());
a.Stop();
EXPECT_FALSE(a.message_loop());
EXPECT_FALSE(a.IsRunning());
}
TEST_F(ThreadTest, StartWithOptions_StackSize) {
Thread a("StartWithStackSize");
// Ensure that the thread can work with only 12 kb and still process a
// message.
Thread::Options options;
options.stack_size = 12*1024;
EXPECT_TRUE(a.StartWithOptions(options));
EXPECT_TRUE(a.message_loop());
EXPECT_TRUE(a.IsRunning());
bool was_invoked = false;
a.message_loop()->PostTask(FROM_HERE, new ToggleValue(&was_invoked));
// wait for the task to run (we could use a kernel event here
// instead to avoid busy waiting, but this is sufficient for
// testing purposes).
for (int i = 100; i >= 0 && !was_invoked; --i) {
PlatformThread::Sleep(10);
}
EXPECT_TRUE(was_invoked);
}
TEST_F(ThreadTest, TwoTasks) {
bool was_invoked = false;
{
Thread a("TwoTasks");
EXPECT_TRUE(a.Start());
EXPECT_TRUE(a.message_loop());
// Test that all events are dispatched before the Thread object is
// destroyed. We do this by dispatching a sleep event before the
// event that will toggle our sentinel value.
a.message_loop()->PostTask(FROM_HERE, new SleepSome(20));
a.message_loop()->PostTask(FROM_HERE, new ToggleValue(&was_invoked));
}
EXPECT_TRUE(was_invoked);
}
TEST_F(ThreadTest, StopSoon) {
Thread a("StopSoon");
EXPECT_TRUE(a.Start());
EXPECT_TRUE(a.message_loop());
EXPECT_TRUE(a.IsRunning());
a.StopSoon();
a.StopSoon();
a.Stop();
EXPECT_FALSE(a.message_loop());
EXPECT_FALSE(a.IsRunning());
}
TEST_F(ThreadTest, ThreadName) {
Thread a("ThreadName");
EXPECT_TRUE(a.Start());
EXPECT_EQ("ThreadName", a.thread_name());
}
// Make sure we can't use a thread between Start() and Init().
TEST_F(ThreadTest, SleepInsideInit) {
SleepInsideInitThread t;
EXPECT_FALSE(t.InitCalled());
t.Start();
EXPECT_TRUE(t.InitCalled());
}
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